There are 19 choices

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Air Bag
- air bag (below console)
- occupant detection (below passenger seat)
Body Control (BCM)
- (below center console)
Communication
- telematics (OnStar, opt UE1)
  - ID 84676081
  - ID 84979014
- wireless charger
  - (under console)
Differential Lock
- (rear differential)
Driver Side Assist
- park assist
  - (inner Passenger Side quarter panel)
    - automatic park control (opt UKG)
    - park assist (opt UD7)
- surround view (opt UV2)
  - (left hand inner quarter panel)
    - ID 84863042
    - ID 86778385
Memory
- (under Driver Side seat)
Network Gateway
- (left hand floor)
Theft-Locking
- keyless entry (engine compartment)
  - ID 13518840
  - ID 13518843
- lock (left hand outside mirror)
- theft deterrent (floor console)
Transmission
- 9 speed (Automatic Transmission)
- CVT

Chassis Computer for 2021 Chevrolet Trailblazer

Fits: Driver Side Assist surround view opt UV2 left hand inner quarter panel ID 84863042 (change)

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